Shoe sole channeling machine



Patented May 24, 1932 UNITED STATES GIOVANNI PASSEFIUME, 0F PORTLAND, OREGON SHOE SOLE CHANNEL-ING MACHINE Application filed February 10, 1930. Serial No. 427,217.

My invention relates to the manufacture and repair of shoes and the like and particularly to repair and has for its particular object the provision of an inexpensive, simple machine for producing a side or channel cut in the edge portions of theshoe soles.

That is, in stitching soles to the welt, it is desirable that the stitching be concealed beneath the wearing surface and for this reason a thin section of the sole adjacent such wearing surface is cut away from the remainder of the sole at its outer edge and bent upwardly about its inner edge. The stitching operation is then completed and the channel pori tion is returned to its original position and is cemented in place and when cemented provides an effective covering strip for the stitching, which would otherwise show.

For the reason that the marginal edge is cemented down, it is preferable to make it quite thin to interpose the least possible surface for engagement and for rupturing such cemented joint. To this end, a more particular object of my invention is to provide a bench tool of this character which can be fastened in place and in which the parts are arranged to be operated efliciently and with substantial accuracy, and in which the parts are arranged to permit efiicient operation of such tool.

These features of my invention are hereinafter described in greater detail and with reference to the accompanying drawings, in which:

Fig. 1 is a side elevation of such tool;

Fig. 2 is a front elevation taken in the direction of the arrow 2 in Fig. 1; and

Fig. 3 is a plan view thereof.

My improved channeling machine comprises a base having an upstanding flange portion 6 at its upper end and the broadfaced seat 6 at the opposite end, which seat serves as a fastening means to a bench or other support. Such base is preferably fastened to such bench or other support by screws 62 which pass thru such portion 6. Pivotally mounted upon such flange portion 6 is a head 0, one end of which is bifurcated as at c. A pivot pin d constitutes the fastening means between such flange and such head and base by a coil spring mounting f with which engages a centered pin or pins f. The free end of head 0 is perforated at 02 to constivtute a means of fastening with a chain or cable for distant control, such for example as a foot-operated treadle so as to leave both of the operators hands free to guide the work and operate the feeding means. Carried by the head is a serrated roller 9 keyed, or otherwise fixed, to a driving shaft h j ournaled in the head at 712, as shown in Fig. 2, and driven by a handle 7L3. Arranged in cooperative alinement with the serrated roller 9 is a tapered roller 2' mounted for free rotation on the base. Mounted adjacent the roller 2' are work-positioning guides j and .70. The guide j is preferably arranged at the inlet side of the roller 2' and is a vertical guide, the inner marginal edge conforming generally to the periphery of thertapered' roller 2'. Such guide j is preferably angular in form and extends around one corner of the base and is fastened by two screws j2, which pass thru slotted holes in such guide. Such slotted holes permit lateral adjustment of such guide with respect to the tapered roller.

The guide A: is provided with a horizontal surface is, which extends laterally out from the base, and the inner marginal surface of such guide also conforms generally to the periphery of the tapered roller and two threaded screw connections 702 also fasten this guide to the base. The guides y" and 7c are thus mounted so as to be adjustable to. meet the conditions encountered in the work. A

knife blade member m having a forwardly r arranged cutting edge 112 extends laterally of the frame and lies in the work-receiving throat, being recessed in a laterally arranged slot in such base and fastened in place by a screw connection 1.

As is shown in Fig. 2, considered with re spect to its longest dimension and laterally of the machine,-the blade m is arranged angularly with respect to the periphery of the roller 2'. This is for the reason that it is deprovide a strong bearsirable to make such channel cut of progressively increased depth away from the marginal edge of the shoe sole to make a so-called feather edge cut. A feather edge out is one Where the outer portion of such material thus severed from the remainder of the sole is of negligible thickness and the remainder thereof is progressively increased in thickness, so that the portion of such severed strip Which remains connected to the sole is of substantial thickness, so as not to be readily torn therefrom. Much difficulty has been experienced heretofore in producing an accurate cut of this description Without the use of a heavy piece of machinery and as all previous attempts to effect this out With which I am familiar have been done by arranging the blade at the proper angle to the base, I have reversed such elements With unusually good results-that is, by arranging the knife blade in a plane parallel to the horizontal guides and arranging the surface of the roller at an oblique angle with respect thereto, the taper being computed to give the desired difference in thickness in such channel cut strip.

I claim:

1. A shoe sole channeling machine comprising a base provided With anupstanding mounting, a head pivotally secured to the lat- .ter, defining a throatwith the upper portion of said base, a pair of cooperating feed rollers carried by said head and said base respectively,positive means for driving one of said rollers, the periphery of one of said rollers being tapered to a predetermined degree and a knife element mounted in such throat in fixed horizontal relation to said last mentioned roller, said knife element being mounted in a close-fitting slot in said throat engaging the edges of said knife. I

2. A shoe sole channeling machine comprising a base provided With an upstanding mounting, a head pivotally secured to the latter, defining a throat With the upper portion of said base, a pair of cooperating feed rollers carried by said head and said base respectively, positive means for driving one of said rollers, resilient means normally spacing the head from said body and therewith rollers, manually adjustable, distant control means opposing said resilient means, the periphery of one of said rollers being tapered to apredeterlnined degree and a knife element mounted in such throat in fixed horizontal relation to said last mentioned roller, said knife element being mounted in a closefitting slot in said throat engaging the edges of said knife, and a guiding surface underlying said knife element, in substantially parallelism therewith and in adjustable relation to saidtapered roller.

In testimony whereof he has affixed his signature.

GIOVANNI PASSEFIUME. 

